Adjust checking area by adding some margin to skip unnecessary area Change-Id: I6678172a58c3ef659b1d42bd987cc1462001d03d Signed-off-by: Donghyun Cho <donghyun.jo@samsung.corp-partner.google.com> Test: cts -m CtsDevicePolicyTestCases -t android.devicepolicy.cts.ScreenCaptureDisabledTest#setScreenCaptureDisabled_true_screenCaptureRedactedOrNull[IncludeRunOnProfileOwnerProfileWithNoDeviceOwner] Bug: 309703195